📄 scanner.cpp
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#line 2 "src/scanner.cpp"
/* A lexical scanner generated by flex */
/* Scanner skeleton version:
* $Header: /shorthand/src/scanner.cpp 7 2/08/03 6:40a Arm $
*/
#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5
/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
#ifdef c_plusplus
#ifndef __cplusplus
#define __cplusplus
#endif
#endif
#ifdef __cplusplus
#include <stdlib.h>
class istream;
#include <unistd.h>
/* Use prototypes in function declarations. */
#define YY_USE_PROTOS
/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST
#else /* ! __cplusplus */
#if __STDC__
#define YY_USE_PROTOS
#define YY_USE_CONST
#endif /* __STDC__ */
#endif /* ! __cplusplus */
#ifdef __TURBOC__
#pragma warn -rch
#pragma warn -use
#include <io.h>
#include <stdlib.h>
#define YY_USE_CONST
#define YY_USE_PROTOS
#endif
#ifdef YY_USE_CONST
#define yyconst const
#else
#define yyconst
#endif
#ifdef YY_USE_PROTOS
#define YY_PROTO(proto) proto
#else
#define YY_PROTO(proto) ()
#endif
/* Returned upon end-of-file. */
#define YY_NULL 0
/* Promotes a possibly negative, possibly signed char to an unsigned
* integer for use as an array index. If the signed char is negative,
* we want to instead treat it as an 8-bit unsigned char, hence the
* double cast.
*/
#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
/* Enter a start condition. This macro really ought to take a parameter,
* but we do it the disgusting crufty way forced on us by the ()-less
* definition of BEGIN.
*/
#define BEGIN yy_start = 1 + 2 *
/* Translate the current start state into a value that can be later handed
* to BEGIN to return to the state. The YYSTATE alias is for lex
* compatibility.
*/
#define YY_START ((yy_start - 1) / 2)
#define YYSTATE YY_START
/* Action number for EOF rule of a given start state. */
#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
/* Special action meaning "start processing a new file". */
#define YY_NEW_FILE yyrestart( yyin )
#define YY_END_OF_BUFFER_CHAR 0
/* Size of default input buffer. */
#define YY_BUF_SIZE 16384
typedef struct yy_buffer_state *YY_BUFFER_STATE;
extern int yyleng;
#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2
/* The funky do-while in the following #define is used to turn the definition
* int a single C statement (which needs a semi-colon terminator). This
* avoids problems with code like:
*
* if ( condition_holds )
* yyless( 5 );
* else
* do_something_else();
*
* Prior to using the do-while the compiler would get upset at the
* "else" because it interpreted the "if" statement as being all
* done when it reached the ';' after the yyless() call.
*/
/* Return all but the first 'n' matched characters back to the input stream. */
#define yyless(n) \
do \
{ \
/* Undo effects of setting up yytext. */ \
*yy_cp = yy_hold_char; \
YY_RESTORE_YY_MORE_OFFSET \
yy_c_buf_p = yy_cp = yy_bp + n - YY_MORE_ADJ; \
YY_DO_BEFORE_ACTION; /* set up yytext again */ \
} \
while ( 0 )
#define unput(c) yyunput( c, yytext_ptr )
/* The following is because we cannot portably get our hands on size_t
* (without autoconf's help, which isn't available because we want
* flex-generated scanners to compile on their own).
*/
typedef unsigned int yy_size_t;
struct yy_buffer_state
{
istream* yy_input_file;
char *yy_ch_buf; /* input buffer */
char *yy_buf_pos; /* current position in input buffer */
/* Size of input buffer in bytes, not including room for EOB
* characters.
*/
yy_size_t yy_buf_size;
/* Number of characters read into yy_ch_buf, not including EOB
* characters.
*/
int yy_n_chars;
/* Whether we "own" the buffer - i.e., we know we created it,
* and can realloc() it to grow it, and should free() it to
* delete it.
*/
int yy_is_our_buffer;
/* Whether this is an "interactive" input source; if so, and
* if we're using stdio for input, then we want to use getc()
* instead of fread(), to make sure we stop fetching input after
* each newline.
*/
int yy_is_interactive;
/* Whether we're considered to be at the beginning of a line.
* If so, '^' rules will be active on the next match, otherwise
* not.
*/
int yy_at_bol;
/* Whether to try to fill the input buffer when we reach the
* end of it.
*/
int yy_fill_buffer;
int yy_buffer_status;
#define YY_BUFFER_NEW 0
#define YY_BUFFER_NORMAL 1
/* When an EOF's been seen but there's still some text to process
* then we mark the buffer as YY_EOF_PENDING, to indicate that we
* shouldn't try reading from the input source any more. We might
* still have a bunch of tokens to match, though, because of
* possible backing-up.
*
* When we actually see the EOF, we change the status to "new"
* (via yyrestart()), so that the user can continue scanning by
* just pointing yyin at a new input file.
*/
#define YY_BUFFER_EOF_PENDING 2
};
/* We provide macros for accessing buffer states in case in the
* future we want to put the buffer states in a more general
* "scanner state".
*/
#define YY_CURRENT_BUFFER yy_current_buffer
static void *yy_flex_alloc YY_PROTO(( yy_size_t ));
static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t ));
static void yy_flex_free YY_PROTO(( void * ));
#define yy_new_buffer yy_create_buffer
#define yy_set_interactive(is_interactive) \
{ \
if ( ! yy_current_buffer ) \
yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
yy_current_buffer->yy_is_interactive = is_interactive; \
}
#define yy_set_bol(at_bol) \
{ \
if ( ! yy_current_buffer ) \
yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
yy_current_buffer->yy_at_bol = at_bol; \
}
#define YY_AT_BOL() (yy_current_buffer->yy_at_bol)
typedef unsigned char YY_CHAR;
#define yytext_ptr yytext
#include <FlexLexer.h>
/* Done after the current pattern has been matched and before the
* corresponding action - sets up yytext.
*/
#define YY_DO_BEFORE_ACTION \
yytext_ptr = yy_bp; \
yyleng = (int) (yy_cp - yy_bp); \
yy_hold_char = *yy_cp; \
*yy_cp = '\0'; \
yy_c_buf_p = yy_cp;
#define YY_NUM_RULES 32
#define YY_END_OF_BUFFER 33
static yyconst short int yy_accept[71] =
{ 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
33, 31, 30, 29, 31, 28, 24, 26, 25, 28,
28, 28, 28, 10, 28, 28, 28, 28, 17, 28,
27, 32, 6, 5, 4, 24, 12, 0, 19, 0,
8, 0, 23, 0, 18, 0, 22, 0, 10, 14,
13, 16, 15, 7, 17, 9, 3, 2, 1, 21,
21, 0, 20, 0, 22, 20, 0, 11, 0, 0
} ;
static yyconst int yy_ec[256] =
{ 0,
1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
1, 1, 4, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 2, 5, 6, 1, 1, 7, 1, 8, 1,
1, 1, 1, 1, 1, 9, 1, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 1, 1, 11,
12, 13, 14, 15, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
1, 17, 1, 1, 16, 1, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 18,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 1, 1, 1, 19, 1, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20
} ;
static yyconst int yy_meta[21] =
{ 0,
1, 1, 2, 2, 1, 1, 1, 3, 1, 4,
1, 1, 1, 1, 1, 4, 1, 4, 1, 1
} ;
static yyconst short int yy_base[78] =
{ 0,
0, 2, 13, 0, 0, 0, 0, 0, 0, 0,
104, 105, 105, 105, 27, 105, 101, 105, 105, 88,
30, 84, 45, 0, 25, 75, 65, 63, 0, 62,
105, 105, 62, 61, 57, 69, 105, 33, 64, 51,
105, 61, 105, 39, 58, 53, 0, 50, 35, 105,
105, 105, 105, 105, 0, 105, 105, 105, 105, 53,
105, 4, 48, 48, 51, 105, 50, 30, 18, 105,
78, 82, 86, 90, 8, 94, 98
} ;
static yyconst short int yy_def[78] =
{ 0,
71, 71, 70, 3, 72, 72, 72, 72, 72, 72,
70, 70, 70, 70, 70, 70, 70, 70, 70, 70,
73, 70, 74, 70, 70, 70, 70, 70, 75, 70,
70, 70, 70, 70, 70, 70, 70, 73, 70, 73,
70, 74, 70, 76, 70, 42, 42, 70, 70, 70,
70, 70, 70, 70, 75, 70, 70, 70, 70, 70,
70, 76, 70, 76, 76, 70, 77, 70, 77, 0,
70, 70, 70, 70, 70, 70, 70
} ;
static yyconst short int yy_nxt[126] =
{ 0,
70, 70, 13, 14, 13, 14, 43, 62, 48, 49,
15, 55, 15, 16, 17, 18, 19, 20, 21, 22,
23, 16, 24, 25, 26, 27, 28, 16, 29, 16,
29, 30, 31, 33, 69, 39, 50, 51, 60, 68,
34, 43, 62, 48, 49, 35, 40, 43, 44, 40,
43, 62, 45, 43, 62, 66, 65, 63, 61, 68,
67, 46, 47, 43, 62, 66, 69, 40, 63, 61,
36, 59, 58, 57, 56, 54, 53, 46, 12, 12,
12, 12, 32, 32, 32, 32, 38, 52, 38, 38,
42, 42, 42, 42, 64, 64, 41, 64, 67, 37,
67, 67, 36, 70, 11, 70, 70, 70, 70, 70,
70, 70, 70, 70, 70, 70, 70, 70, 70, 70,
70, 70, 70, 70, 70
} ;
static yyconst short int yy_chk[126] =
{ 0,
0, 0, 1, 1, 2, 2, 62, 62, 24, 24,
1, 75, 2, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 15, 69, 21, 25, 25, 38, 68,
15, 44, 44, 49, 49, 15, 21, 23, 23, 38,
64, 64, 23, 65, 65, 63, 44, 67, 60, 48,
46, 23, 23, 42, 42, 45, 67, 40, 42, 39,
36, 35, 34, 33, 30, 28, 27, 42, 71, 71,
71, 71, 72, 72, 72, 72, 73, 26, 73, 73,
74, 74, 74, 74, 76, 76, 22, 76, 77, 20,
77, 77, 17, 11, 70, 70, 70, 70, 70, 70,
70, 70, 70, 70, 70, 70, 70, 70, 70, 70,
70, 70, 70, 70, 70
} ;
/* The intent behind this definition is that it'll catch
* any uses of REJECT which flex missed.
*/
#define REJECT reject_used_but_not_detected
#define yymore() yymore_used_but_not_detected
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
#line 1 "src/scanner.l"
#define INITIAL 0
#define YY_NEVER_INTERACTIVE 1
#line 4 "src/scanner.l"
///////////////////////////////////////////////////////////////////////////////
// $Header: /shorthand/src/scanner.cpp 7 2/08/03 6:40a Arm $
//-----------------------------------------------------------------------------
// Project: ShortHand interpreter
// Author: Andrei Remenchuk <andrei@remenchuk.com>
//-----------------------------------------------------------------------------
// scanner.l: definition of lexical scanner (.l file is processed by Flex).
///////////////////////////////////////////////////////////////////////////////
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <limits.h>
#ifdef WIN32
#include "io.h"
#define isatty _isatty
#endif
#include "shorthand.h"
#include "utils.h"
#include "nodes.h"
#include "mman.h"
#include "yydef.h"
#include "FlexLexer.h"
#include "parser.h"
#define PP(n) LEXER->yypos+=n;
#define PP1 LEXER->yypos++
#define PP2 LEXER->yypos+=2
#define PPT LEXER->yypos+=yyleng
#define LEXER ((ShortHandLexer*)this)
#define TOKEN ((YYSTYPE*)LEXER->yylval)
#define RETURN_TOKEN(f) return (TOKEN->num=f)
#define YY_USER_ACTION \
{ LEXER->yylloc.first_line = LEXER->yylloc.last_line = LEXER->yyline; \
LEXER->yylloc.first_column = LEXER->yypos; \
LEXER->yylloc.last_column = LEXER->yypos+yyleng; \
}
typedef struct _keyword {
const char *token;
int value;
} keyword;
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